package com.atguigu.gulimall.order.config;

import com.atguigu.gulimall.order.entity.OrderEntity;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.impl.AMQImpl;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * @author 马迎迎
 * @Title: MyMqConfig
 * @Package com.atguigu.gulimall.order.config
 * @Description: TODO(添加描述)
 * @date 2021年05月31日 18:39
 */
@Configuration
public class MyMqConfig {

    //@Bean Binding Queue Exchange

    /**
     * 容器中的组件都会自动（RabbitMQ没有的情况下）
     * @return
     */
    //延时队列
    @Bean
    public Queue ordeDelayQueue(){
        Map<String, Object> arguments=new HashMap<>();
        /**
         * x-dead-letter-exchange: order-event-exchange
         * x-dead-letter-routing-key: order.release.order
         * x-message-ttl: 60000
         */
        arguments.put("x-dead-letter-exchange","order-event-exchange");
        arguments.put("x-dead-letter-routing-key","order.release.order");
        arguments.put("x-message-ttl",60000);
        //Queue(String name, boolean durable, boolean exclusive, boolean autoDelete, @Nullable Map<String, Object> arguments) {
        //        super(arguments);
        Queue queue = new Queue("order.delay.queue", true, false, false,arguments);


        return queue;
    }

    //普通队列
    @Bean
    public Queue orderReleaseOrderQueue(){
        Queue queue = new Queue("order.release.order.queue", true, false, false);
        return queue;
    }

    @Bean
    public Exchange orderEventExchange(){
        //String name, boolean durable, boolean autoDelete, Map<String, Object> arguments
        TopicExchange topicExchange = new TopicExchange("order-event-exchange",true,false);
        return topicExchange;
    }

    @Bean
    public Binding orderCreateOrderBinding(){
        //String destination, Binding.DestinationType destinationType, String exchange, String routingKey, @Nullable Map<String, Object> arguments
        return new Binding("order.delay.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.create.order",
                null);
    }

    @Bean
    public Binding orderReleaseOrderBinding(){
        return new Binding("order.release.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.order",
                null);
    }

    /**
     * 订单释放直接和库存释放进行绑定
     * @return
     */
    @Bean
    public Binding orderReleaseOther(){
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.other.#",
                null);
    }

    //秒杀队列
    @Bean
    public Queue orderSeckillOrderQueue(){
        Queue queue = new Queue("order.seckill.order.queue", true, false, false);
        return queue;
    }

    /**
     * 秒杀服务和订单服务进行绑定，实现队列削峰，订单服务不会因为流量大而崩溃
     * @return
     */
    @Bean
    public Binding orderSeckillOther(){
        return new Binding("order.seckill.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.seckill.order",
                null);
    }
}
